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Electrically driven nanogap antennas and quantum tunneling regime
Claire Deeb1, Johann Toudert2, Jean-Luc Pelouard3
1Almae Technologies, Route de Nozay, 91460 Marcoussis, France.
Nanophotonics (Berlin, Germany)
|December 5, 2024
Summary
Electrically driven nanogap antennas enable electrical tuning of plasmon resonance and broadband photon emission. This technology holds potential for developing faster on-chip communication systems.
Area of Science:
- Plasmonics
- Nanotechnology
- Optoelectronics
Background:
- Nanogap antennas exhibit optical and electrical properties highly sensitive to the nanogap region.
- Interplay between confined fields, electrons, and photons is crucial in nanogap antennas.
Purpose of the Study:
- To investigate the electrical tuning of gap plasmon resonance in nanogap antennas.
- To explore the potential of electron tunneling for broadband photon emission.
- To assess the feasibility of nanogap antennas for on-chip communication.
Main Methods:
- Electron injection into the nanogap to open a conductance channel.
- Modification of plasmon charge distribution via electrical stimulation.
- Observation of photon emission, including overbias light emission.
Main Results:
- Electrical injection of electrons tunes the gap plasmon resonance.
- Electron tunneling induces broadband photon emission with enhanced quantum efficiency.
- Overbias light emission occurs due to hot electron distribution.
Conclusions:
- Electrically controlled nanogap antennas offer tunable optical properties.
- The technology facilitates efficient broadband photon generation.
- Nanogap antennas show promise for future high-speed on-chip communication.
